<!DOCTYPE html>
<html>
  <!--
  Copyright (c) 2012 The Chromium Authors. All rights reserved.
  Use of this source code is governed by a BSD-style license that can be
  found in the LICENSE file.
  -->
<head>
  <title>Regal DreamTorus for Google Native Client</title>
  <script type="text/javascript">
    helloWorldModule = null;  // Global application object.
    statusText = 'NO-STATUS';

    // Indicate success when the NaCl module has loaded.
    function moduleDidLoad() {
      helloWorldModule = document.getElementById('nacl');
      updateStatus('SUCCESS');
    }

    // Handle a message coming from the NaCl module.
    function handleMessage(message_event) {
      logDiv = document.getElementById('log');
      var old = logDiv.innerHTML;
      logDiv.innerHTML = "<p>"
      logDiv.innerHTML += message_event.data;
      logDiv.innerHTML += "</p>"
      logDiv.innerHTML += old;
      //alert(message_event.data);
    }

    // If the page loads before the Native Client module loads, then set the
    // status message indicating that the module is still loading.  Otherwise,
    // do not change the status message.
    function pageDidLoad() {
      if (helloWorldModule == null) {
        updateStatus('LOADING...');
      } else {
        // It's possible that the Native Client module onload event fired
        // before the page's onload event.  In this case, the status message
        // will reflect 'SUCCESS', but won't be displayed.  This call will
        // display the current message.
        updateStatus();
      }
    }

    // Set the global status message.  If the element with id 'statusField'
    // exists, then set its HTML to the status message as well.
    // opt_message The message test.  If this is null or undefined, then
    //     attempt to set the element with id 'statusField' to the value of
    //     |statusText|.
    function updateStatus(opt_message) {
      if (opt_message)
        statusText = opt_message;
      var statusField = document.getElementById('statusField');
      if (statusField) {
        statusField.innerHTML = statusText;
      }
    }
  </script>
</head>
<body onload="pageDidLoad()">

<p><a href="https://github.com/p3/regal">https://github.com/p3/regal</a></p>

<h2>Status: <code id="statusField">NO-STATUS</code></h2>
  <!-- The <EMBED> element is wrapped inside a <DIV>, which has both a 'load'
  and a 'message' event listener attached.  This wrapping method is used
  instead of attaching the event listeners directly to the <EMBED> element to
  ensure that the listeners are active before the NaCl module 'load' event
  fires.  This also allows you to use PPB_Messaging.PostMessage() (in C) or
  pp::Instance.PostMessage() (in C++) from within the initialization code in
  your NaCl module. 
  
  The src points to a manifest file, which provides the Native Client plug-in
  a mapping between architecture and NaCl Executable (NEXE). 
  
  We use a non-zero sized embed to give Chrome space to place the bad plug-in
  graphic, if there is a problem.
  -->
  <div id="listener">
    <script type="text/javascript">
      var listener = document.getElementById('listener')
      listener.addEventListener('load', moduleDidLoad, true);
      listener.addEventListener('message', handleMessage, true);
    </script>

    <embed name="nacl_module"
           id="nacl"
           width=512 height=512
           src="nacl.nmf"
           type="application/x-nacl" />
  </div>
  <div id="log"></div>
</body>
</html>
